After discussion, we decided to simplify attribute translation for now. Full translation requires support for UTF-8 values encoded according to RFC 8187/7230, this can be clarified and implemented in further PRs.
1. Remove translation tables
2. Use simple translation rules only, for now ignoring UTF-8 keys and values
- `X-Attribute-NEOFS-` prefixed headers considered well-known system attributes
- System Attribute key is uppercased
- System Attribute key's `-` translates to `_`
- `X-Attribute-` prefixed headers considered regular object attributes
- Normal attribute key is a result of http header prefix trimming
- Value string should be left as is, for now
```
HTTP:
X-Attribute-NEOFS-Expiration-Epoch: 123
X-Attribute-FileName: cat.jpg
NeoFS:
__NEOFS__EXPIRATION_EPOCH: "123"
FileName: "cat.jpg"
```
Signed-off-by: Evgeniy Kulikov <kim@nspcc.ru>
- It's confusing. If there is no difference, I suggest having the route named after the protocol verb or resulting handler. So it should be either post or upload.
- Don't you find that it would be more understandable without else ifs?
- Why do we need a temporary file here?
- etc
Signed-off-by: Evgeniy Kulikov <kim@nspcc.ru>
- Maybe it could be rephrased to "attribute name prefixed with X-Attribute-"
- Maybe it worth renaming to userAttributeHeaderPrefix
- Requirement for having only one file uploaded at a time has to be reflected in documentation.
- Maybe this should be reflected in doc
- I'm not sure if missing timestamp attribute should be forced on gateway level. Normally it should be set by app and there should be a way not to set it.
Signed-off-by: Evgeniy Kulikov <kim@nspcc.ru>
